In volume quantities, up to 1-1/2”. Inquiry Get Price 6mm uv resistant pe300 sheet for Horse Stable Partitions-HDPE . cut-to-size HDPE sheets for Horse Stable Partitions. horse stalls from recycled plastic mposite100% Recycled Plastic Lumber for Horse Stables okay. 3 Feb 2011 100% Recycled Plastic Lumber for Horse Stables. Using recycled plast